US2679077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosure
Assignee: Westinghouse Electric Corp
•
Filing: 1950-07-07
•
Granted: 1954-05-25
•
Expires: 1970-07-07
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Immel
- 👤 Reese T Kintzing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:21
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/08; F25D23/082; F25D23/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB191207108A
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US1688458A
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US1834031A
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CH178144A
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US2091791A
Cited
CH191485A
Cited
US2093727A
Cited
GB518687A
Cited
US2321589A
Cited
US2314666A
Cited
US2359053A
Cited
US2324333A
Cited
US2586672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |